Forms :: Binding Data From Database To Combo Box?
Oct 15, 2010i try to bind database to combo box but having (Object reference not set to an instance of an object) error during the running.
ADVERTISEMENT
Forms :: Binding Data From A Text File To A Combo Box
Mar 2, 2010This is the contents of the text file:[code]I have a combo box on a form and I want to bind some of the data from the text file, the stuff highlighted in bold, to the combo box.
View 4 RepliesForms :: Binding Combo Box To Xml File
Apr 14, 2009i have an xml file that looks like:
<?xml version="1.0"?>
<ROWSET>
<ROW>
[Code]....
Combo Box Data Binding To Webservice
Nov 8, 2011I have a combobox that is databound to my webservice. Code works perfect.
[Code]...
My issue is I need to be able to call that function from another form. I have a form that I add a new customer with and want to refresh the data in the combo box, and select it has the selected item. How do I do this? I have tried several ways, and it just does not work.
[Code]...
DB/Reporting :: Binding Data To A Combo Box?
Nov 26, 2009I'm trying to bind data to a combo box but it does not appear to be working. I've setup the DataSet and the DataSetBindingSource and all this appears to be working, within the form design I can expand the little arrow in the ComboBox control and preview the data. This appears to be working but when the application is run, nothing appears in the drop down box.
I have the following code in place:
Code:
cmbSelectCompany.DataSource = ContactsDBDataSet.Company()
cmbSelectCompany.DisplayMember = "CompanyName"
cmbSelectCompany.ValueMember = "CompanyName"
[Code]....
VS 2008 Data Binding Combo Boxes?
Mar 20, 2010I've done data binding to my Combos and it works fine but my data base has over 260 000 entries, so I can't let user to move trough it, one by one entry until finds a match.What I am looking for is that user select value from Combo Boxes and Text Boxes get filled in with a matching values from the same row.Auto Complete helps in selection but I still can't work it out how to get values to my text boxes.
[Code]...
Binding Combo With Heavy Data - Reduce The Page Loading Time?
Aug 25, 2009I have combo box being filled with more than 50 thousand records. it is getting sometime to load and bind the data. I am using datatable to bind the data. I tried using data-reader as well but in vain.
View 3 RepliesForms :: Data Binding To Hidden Controls
Apr 21, 2009I have a windows form that I bind to a datatable via a binding source. The binding is done in code at run time. Eg;Me.txtCode.DataBindings.Add(New System.Windows.Forms.Binding("Text", bsForm, "ToolCode", True)) (bsForm is the binding source)This works well except if the form control is hidden (I have a couple controls on the form that hold Record ID and Version numbers that the user doesn't need to see). Databinding doesn't seem to work reliably for hidden controls.
View 10 RepliesBinding - Centralized Control Of Data Forms From Toolbars
Dec 24, 2009what I want to achive is to have a centralized control of my data-forms from my toolbars (toolstrip), like navigating (PREV-NEXT), SAVE, DELETE, CANCLE and so on instead of having it in every form. it worked beautifully in my VB6 projects. below are the codes i did in .NET and it don't seem to work and I guessed it about my use of late binding in .NET.
This is what I have done that don't seem to work. In my project module, frm is declared Public as form object Public frm as system.windows.form().form
Im my childforms i want as soon as the forms are load, activated or have focus, should instantiate or create the form object in my frm. [Code] while in my menu or main form (parent form) with toolstrip buttons, this actually where all individual forms are called. [Code]
and it's flagging an error there:
frm.CloseForm is not a member of System.Windows.Forms().Form
and I must say here that I declared all the subs im calling in the childforms PUBLIC, and of-course frm being a late binding type may not have all the Public Method on it.
Data Binding - DataList Control In Windows Application Forms?
Jun 6, 2010I am upgrading my application from vb6 to vb.net.I used to populate my data in datalist control in vb6 forms. I am not finding it in vb.net windows form application. Which one control is the equivalent to it?
How can i list my data in that control?
just like: I had a table with data like id, name
I want the name should be the displayed column and id the bound column? how can i do that
Binding Data From Oracle Database
Apr 25, 2009I developed an application with old VB form and binding the data from Oracle database into VB form. Actually, I tried to bind the data more than 35000 records in to grid. But, it takes more than half an hour and also form was hanged and there is no output. Can you please let me know the solution to fix it and bind the data without any hang in my application. What are the steps to be followed to fix it?
View 1 RepliesDatabase - Datagridview To Textbox Binding Data?
Apr 30, 2011When the program is executed, the datagridview populate data and also the textboxes(example StockNumber,Description) and when i typed words in the search textbox ,the datagridview filters the matching words.When I clicked the item in the datagridview the textboxes does not changed it didnt show the information...
what the solution for my problem..i need to display the information in the textboxes when i clicked the item in the datagridview. Private Sub txtreg_delsrch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtreg_delsrch.TextChanged
[Code]...
Auto-complete Textboxes With Binding Data From Database?
Oct 12, 2010I am using two autocomplete textboxes and both of them are binding data from the same table. What I want is when I select an item from the autocomplete drop down list of textbox1 not to have the textbox2 value set. Example :
Column1 Column2
Row1 value1 value2
Row2 value3 value3
When I select value1 for textbox1 I get automatically value2 in textbox2. I do not want that.I want when I select value1 for textbox1 , textbox2 to remain empty until I select a value for it (it maybe value3)
Adding Data To Database Through A Combo Box?
Jun 2, 2011I am trying this..
Imports System.Data.OleDb
Public Class Form1
Dim conn As OleDbConnection
Dim cmd As OleDbCommand
[code]....
I get an error: object reference not set to an instance of an object
How To Populate A Combo Box With Data From A Database
Jun 6, 2011can someone please give me basic steps on how to hard code a combo box to display a column from a database?
View 21 RepliesPut Data In Combo Box From MySQL Database?
Nov 30, 2009Visual Basic 2008 I want to put data in combo box from MySQL database.
View 19 RepliesRetrieve Data From Database To COMBO BOX?
Jun 10, 2011I'm doing a project in vb.net back-end is MSACCESS...
I don't know how to store data from COMBO BOX and to RETRIVE data from database to COMBO BOX.[code]...
How To Save A Combo Box Data Into Access Database
Apr 3, 2011i am newbie in vb. and i facing a problem in database update into the access database. well, because of my windows have combobox and textbox. i dont have any difficulty in textbox update into access database, but i face a difficulty in combobox. and my combobox have 2 item in it. anyone can teach me? anyone can provide me some coding example and detail examplation. because i am the type who look through the coding and learn form it.
View 5 RepliesLoad Data From A Database Into A Combo Box Using A Module?
May 1, 2009I'm working with a form that has five combo boxs, when the form loads it goes to the modQuotations where there is a public sub that loads the comboboxs with data from a database but it after its done loading the form there is nothing in the combo boxs. [code]..
View 8 RepliesDatabase Binding And Data Navigation Project Error - Null Reference?
Mar 4, 2012I am trying not to become intimidated or give up.I created a simple database and added stored procedures to read the data on a Windows form using Visual Basic in VS 2010.First I tried the Data Grid Example and all worked, I was able to view the data using a connection string to call the Stored procedure.I have stepped it up a notch by trying to bind data to form controls and I am getting this error message when I try to navigate through the data.
System.NullReferenceException was unhandled
[code].....
Combo Box Event To Select Certain Data From An Access Database?
Nov 30, 2010I am using VB 2008 Express to connect to an Access 2007 database. I have a combo box that is populated by the database. When I used the Access report VBA, I used the AfterUpdate() event to calculate a sum and place the results in a text box. I need to know how to do the same operation in VB 2008 Express using the SelectedIndexChanged event of the combo box.
The combo box is called "cboYearMonth" and is populated by my database, this is working correctly.
The text box that I want the calculated results to appear in is called "ExactPagesTextbox"
I have a query in Access called "JobTypeExact_Query" that contains all the pages that I need. What I need to do is calculate the total number of "Pages" limited to the YEARMONTH selected in the combo box. YEARMONTH is a value in every record in this query.
VS 2008 - Show Related Data From Database Using Combo Box?
Nov 15, 2009I have created a link using VS2008 and MS Access 2007.In my database, assume that I have ID, First Name, Last Name, Gender
------------------------
1 John Smith Male
2 Michael Jackson Male
3 Alicia Keys Female
------------------------
These are the data I have in my database.In my form, assume that I have
ID [Combo Box]
First Name [Text Box]
Last Name [Text Box]
Gender [Text Box]
Now, I have 3 ID in my combo box. If I choose [1] in my combo box, I want the rest of my test box show [John] [Smith] [Male].When I choose [2] in my combo box again, it will show [Michael] [Jackson] [Male].
binding Navigators / Datagrid View / Binding Source Are All Sql Database Parts
Oct 18, 2010binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
View 2 RepliesCombo Box Complex Binding
Jun 10, 2010I am having a problem setting up my combo box to pull its menu from a SQL Server table and store to the main data table.Currently my drop down list displays correctly but saves 'System.Data.DataRowView' to the data table. My main data table is called 'Survey' with staffname as a column, then I have another menu table of staff member names which populates the drop down menu.I found that when I remove the DataSource and populate the Items collection instead the combo box saves the correct value as expected but when I use the datasource it saves the words ''System.Data.DataRowView',[code]
View 2 RepliesFill A Combo Box With Data From A Database But Depending On How Much A Progressbar Is Filled?
Jan 24, 2012So im trying to fill a combo box with data from a database but depending on how much a pregressbar is filled THis is what im trying:
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Form1.ProgressBar9.Value <= 10 Then
Me.Level1TableAdapter.Fill(Me.CTDBDataSet1.Level1)
[code]....
Retrieve From Database Data To A Text Box That Equal To Selected From A Combo Box
Mar 13, 2011I want retrieve from database data to a text box that equal to selected from a combo box. ex:- i'm selecting a item_code from item code combo box after item name should come to the item name text box.how can i writ that.
View 2 RepliesForms :: Selected Item In Combo Box Will Not Appear In Another Combo Box?
May 27, 2011how do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box. i have this code for now but it does not work
[Code]...
.net - Binding A Dictionary To A WinForms Grid (or Combo)?
Aug 24, 2011You have a pseudo-table class and a pseudo-row class. The row is somewhat generic and has no strongly-typed fields. It follows the typical dictionary interface
Dim age As Object = person("Age") 'accessed via default property Item
vs
Dim age As Integer = person.Age 'an actual property typed as an Integer
What's the pattern to use so that we can bind our pseudo table and its rows to a grid or combo box?
Dim rs As New clsResultSet(tblPeople)
Dim id As Object = rs(0)("Id") '913
Dim name As Object = rs(0)("Name") 'Ted[code].....
Binding Combo Boxes To Generic Dictionary?
Feb 19, 2011I'm having problems binding 2 combo boxes to a generic dictionary, this is what i have done so far
Dim cb As ComboBox = sender
Dim name As String = cb.Name.ToString
Dim dict As New Dictionary(Of String, List(Of String))
[Code]....
Send Data From Text Boxes / Combo Boxes To Access Database?
Jan 23, 2011I'm in the middle of creating an application that will be used to input customer information whilst the customer is speaking to someone over the phone. This involves the customer giving the employee information such as name, address, postcode etc and the employee inputting that information into text boxes and combo boxes that are in the application.
What I would like to be able to do is after the customers information is given over the phone, I need to be able to send that information to a database which will probably most likely be done by button click. In this case, I'm using Microsoft Access. I'm also hoping that I can do this within Visual Basic coding.
The database is set out with multiple tables which include a customer table and a ticket table and both have multiple fields such as first name, surname in the customers table. Both of these tables are in use with the information that the customer gives over the phone.
I've already asked on other forums and people are where replying giving me third party programs that I could use to implement this, something I don't really want to do.